PNNL X-coolerII-GEM120P4 - Revision history

Foretony at 20:07, 31 August 2022

2022-08-31T20:07:41Z

Foretony: /* PNNL's HpGe X-cooler poptop detector */

2022-08-30T22:05:13Z

PNNL's HpGe X-cooler poptop detector

Burgjeff: /* 6/30/17 */

2017-06-30T22:22:28Z

6/30/17

Burgjeff: /* 6/30/17 */

2017-06-30T22:22:14Z

6/30/17

Burgjeff: /* 6/30/17 */

2017-06-30T16:32:53Z

6/30/17

Burgjeff: /* 6/30/17 */

2017-06-30T16:31:05Z

6/30/17

Burgjeff: /* Detector */

2017-06-30T16:29:37Z

Detector

Foretony: /* Compressor */

2016-12-15T23:23:42Z

Compressor

Foretony: /* Detector */

2016-12-15T23:22:46Z

Detector

Foretony at 23:21, 15 December 2016

2016-12-15T23:21:13Z

← Older revision		Revision as of 20:07, 31 August 2022
Line 1:		Line 1:
		+	https://wiki.iac.isu.edu/index.php?title=CH_HPGe_Detector
		+
	=PNNL's HpGe X-cooler poptop detector=		=PNNL's HpGe X-cooler poptop detector=

← Older revision		Revision as of 22:05, 30 August 2022
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	GMX model => n-type => Usually a negative HV bias		GMX model => n-type => Usually a negative HV bias

		+
		+	https://wiki.iac.isu.edu/images/4/45/Physics_PNNL_HPGe_GEM120P4_SerialNumber.JPG
	==Manual==		==Manual==

@@ Line 47: / Line 47: @@
 Face of detector was cold to the touch and the HV shutdown would not allow voltage to be applied.
-We decided to pump out the detector chamber.  A pen mark at the pump out port was observed indicating that on 12/15 the vacuum was <math>1.6 x 10^{-6}</math> Torr.  There was every indication that the vacuum was in the milli-Torr range and at best 2 x 10^{-5} Torr (The milli-Torr gauge registered a pressure at the moment the valve was opened on the detector to pump out the detector chamber).  After a few minutes the pressure was at 6 x 10^{-6} Torr. After about 10 minutes it was at 3 x 10^{-6} Torr. We pumped it out for 3 hours and achieved a pressure of  1 x 10^{-6}.  We stopped pumping it for 2 hours to see if the vacuum would spoil.  The vacuum may have change from 1.6 to 2.0 x 10^{-6} Torr after 2 hours.
+We decided to pump out the detector chamber.  A pen mark at the pump out port was observed indicating that on 12/15 the vacuum was <math>1.6 x 10^{-6}</math> Torr.  There was every indication that the vacuum was in the milli-Torr range and at best 2 x 10^{-5} Torr (The milli-Torr gauge registered a pressure at the moment the valve was opened on the detector to pump out the detector chamber).  After a few minutes the pressure was at 6 x 10^{-6} Torr. After about 10 minutes it was at 3 x 10^{-6} Torr. We pumped it out for 3 hours and achieved a pressure of  1 x 10^{-6} Torr.  We stopped pumping it for 2 hours to see if the vacuum would spoil.  The vacuum may have change from 1.6 to 2.0 x 10^{-6} Torr after 2 hours.
 [[2nCor_Equipment#PNNL_HpGe_X-cooler]]

@@ Line 47: / Line 47: @@
 Face of detector was cold to the touch and the HV shutdown would not allow voltage to be applied.
-We decided to pump out the detector chamber.  A pen mark at the pump out port was observed indicating that on 12/15 the vacuum was <math>1.6 x 10^{-6}</math> Torr.  There was every indication that the vacuum was in the milli-Torr range and at best 2 x 10^{-5} Torr (The milli-Torr gauge registered a pressure at the moment the valve was opened on the detector to pump out the detector chamber).  After a few minutes the pressure was at 6 x 10^{-6} Torr. After about 10 minutes it was at 3 x 10^{-6} Torr. We pumped it out for 5 hours and achieved a pressure of
+We decided to pump out the detector chamber.  A pen mark at the pump out port was observed indicating that on 12/15 the vacuum was <math>1.6 x 10^{-6}</math> Torr.  There was every indication that the vacuum was in the milli-Torr range and at best 2 x 10^{-5} Torr (The milli-Torr gauge registered a pressure at the moment the valve was opened on the detector to pump out the detector chamber).  After a few minutes the pressure was at 6 x 10^{-6} Torr. After about 10 minutes it was at 3 x 10^{-6} Torr. We pumped it out for 3 hours and achieved a pressure of  1 x 10^{-6}.  We stopped pumping it for 2 hours to see if the vacuum would spoil.  The vacuum may have change from 1.6 to 2.0 x 10^{-6} Torr after 2 hours.
 [[2nCor_Equipment#PNNL_HpGe_X-cooler]]

@@ Line 47: / Line 47: @@
 Face of detector was cold to the touch and the HV shutdown would not allow voltage to be applied.
-The detector vacuum was restored.  Originally we way a pen mark at the pump out port indicating that on 12/15 the vacuum was <math>1.6 x 10^{-6}</math> Torr.  There was every indication that the vacuum was in the milli-Torr range and at best 2 x 10^{-5} Torr (The milli-Torr gauge registered a pressure at the moment the valve was opened on the detector to pump out the detector chamber).  After a few minutes the pressure was at 6 x 10^{-6} Torr. After about 10 minutes it was at 3 x 10^{-6} Torr. We pumped it out for 5 hours and achieved a pressure of
+We decided to pump out the detector chamber.  A pen mark at the pump out port was observed indicating that on 12/15 the vacuum was <math>1.6 x 10^{-6}</math> Torr.  There was every indication that the vacuum was in the milli-Torr range and at best 2 x 10^{-5} Torr (The milli-Torr gauge registered a pressure at the moment the valve was opened on the detector to pump out the detector chamber).  After a few minutes the pressure was at 6 x 10^{-6} Torr. After about 10 minutes it was at 3 x 10^{-6} Torr. We pumped it out for 5 hours and achieved a pressure of
 [[2nCor_Equipment#PNNL_HpGe_X-cooler]]

← Older revision		Revision as of 16:29, 30 June 2017
Line 40:		Line 40:

	The detector may be positioned at any angle and height just do not exceed the bending limits ( 6" bend radius) of the cooling lines. (information confirmed by Vance Harmon at Ortec vance.harmon@ametek.com)		The detector may be positioned at any angle and height just do not exceed the bending limits ( 6" bend radius) of the cooling lines. (information confirmed by Vance Harmon at Ortec vance.harmon@ametek.com)
		+
		+	=Service=
		+
		+	==6/30/17==
		+
		+	Face of detector was cold to the touch and the HV shutdown would not allow voltage to be applied.
		+
		+	The detector vacuum was restored. Originally we way a pen mark at the pump out port indicating that on 12/15 the vacuum was <math>1.6 x 10^{-6}</math> Torr. There was every indication that the vacuum was in the milli-Torr range and at best 2 x 10^{-5} Torr (The milli-Torr gauge registered a pressure at the moment the valve was opened on the detector to pump out the detector chamber). After a few minutes the pressure was at 6 x 10^{-6} Torr.

	[[2nCor_Equipment#PNNL_HpGe_X-cooler]]		[[2nCor_Equipment#PNNL_HpGe_X-cooler]]

← Older revision		Revision as of 23:23, 15 December 2016
Line 32:		Line 32:
	===Compressor===		===Compressor===

−	The compressor is a refrigeration unit that should remain horizontal. You have a time window from 5 minutes after the 120 Volts is interrupted until 10 min afterward to restore power. It is recommended that you allow it to settle for 6 hours if power is restored after 10 minutes as well as thermally cycle the system (i.e. let it sit for 24 hours and then turn it back on). The compressor must not exceed an inclination angle of 10 degrees.	+	The compressor is a refrigeration unit that should remain horizontal. You have a time window from 5 minutes after the 120 Volts is interrupted until 10 min afterward to restore power. It is recommended that you allow it to settle for 6 hours if power is restored after 10 minutes as well as thermally cycle the system (i.e. let it sit for a minimum of 6 hours ideally 24 hours and then turn it back on). The compressor must not exceed an inclination angle of 10 degrees.

@@ Line 39: / Line 39: @@
 ===Detector===
-The detector may be positioned at any angle and height just do not exceed the bending limits of the cooling lines.  (information confirmed by Vance Harmon at Ortec vance.harmon@ametek.com)
+The detector may be positioned at any angle and height just do not exceed the bending limits ( 6" bend radius)  of the cooling lines.  (information confirmed by Vance Harmon at Ortec vance.harmon@ametek.com)
 [[2nCor_Equipment#PNNL_HpGe_X-cooler]]

@@ Line 1: / Line 1: @@
-PNNL's HpGe X-cooler poptop detector
+=PNNL's HpGe X-cooler poptop detector=
 Model: GEM120P4
@@ Line 11: / Line 11: @@
 GMX model => n-type => Usually a negative HV bias
 ==HV shutdown signal==