PosRun 10 14 2013 - Revision history

Foretony: /* Shielded Cell direct beam with magnet */

2013-10-16T20:49:26Z

Shielded Cell direct beam with magnet

2013-10-15T23:21:09Z

Shielded Cell direct beam with magnet

2013-10-15T21:03:10Z

FC -vs- 90A beam stop correlation

2013-10-15T20:05:01Z

Shielded Cell direct beam with magnet

2013-10-15T20:04:50Z

Shielded Cell direct beam with magnet

2013-10-15T20:04:15Z

Shielded Cell direct beam with magnet

2013-10-14T23:26:26Z

Shielded Cell direct beam with magnet

2013-10-14T23:17:24Z

Shielded Cell direct beam with magnet

2013-10-14T23:13:27Z

Shielded Cell direct beam with magnet

2013-10-14T23:04:41Z

Shielded Cell direct beam with magnet

← Older revision		Revision as of 20:49, 16 October 2013
Line 109:		Line 109:


−	[[File:PosRes_10-15-2013.png \| 200 px]]	+	[[File:PosRes_10-15-2013.png \| 200 px]][[File:PosResA_10-15-2013.png \| 200 px]]

	==FC -vs- 90A beam stop correlation==		==FC -vs- 90A beam stop correlation==

@@ Line 100: / Line 100: @@
 a scope measurement of the 38 MeV electron pulse impinging the tungsten target suggested that one pulse had
-<math>\frac{0.859 \times 10^{-9} V s}{50 Ohm} = 1.7 \times 10^{-11} Coul \frac{1 e^-}{1.9 \times 10^{-19} Could} = 10^{8}</math> electrons
+<math>\frac{0.859 \times 10^{-9} V s}{50 Ohm} = 1.7 \times 10^{-11} Coul \frac{1 e^-}{1.6 \times 10^{-19} Coul} = 10^{8}</math> electrons
 or given the 100 nsec pulse width the peak current is

← Older revision		Revision as of 21:03, 15 October 2013
Line 107:		Line 107:

	I believe we need to run at 0.01 Amps to keep the ion pumps working.		I believe we need to run at 0.01 Amps to keep the ion pumps working.
		+
		+
		+	[[File:PosRes_10-15-2013.png \| 200 px]]

	==FC -vs- 90A beam stop correlation==		==FC -vs- 90A beam stop correlation==

@@ Line 104: / Line 104: @@
 or given the 100 nsec pulse width the peak current is
-<math>\frac{1.7 \times 10^{-11} Could}{100 \times 10^{-9} sec}</math> = 0.017 Amps
+<math>\frac{1.7 \times 10^{-11} Coul}{100 \times 10^{-9} sec}</math> = 0.017 Amps
 I believe we need to run at 0.01 Amps to keep the ion pumps working.

@@ Line 104: / Line 104: @@
 or given the 100 nsec pulse width the peak current is
-\frac{1.7 \times 10^{-11} Could}{100 \times 10^{-9} sec} = 0.017 Amps
+<math>\frac{1.7 \times 10^{-11} Could}{100 \times 10^{-9} sec}</math> = 0.017 Amps
 I believe we need to run at 0.01 Amps to keep the ion pumps working.

← Older revision		Revision as of 20:04, 15 October 2013
Line 97:		Line 97:

	38 MeV electrons with 859 pVs/50 Ohms per 100 nsec wide pulse		38 MeV electrons with 859 pVs/50 Ohms per 100 nsec wide pulse
		+
		+	a scope measurement of the 38 MeV electron pulse impinging the tungsten target suggested that one pulse had
		+
		+	<math>\frac{0.859 \times 10^{-9} V s}{50 Ohm} = 1.7 \times 10^{-11} Coul \frac{1 e^-}{1.9 \times 10^{-19} Could} = 10^{8}</math> electrons
		+
		+	or given the 100 nsec pulse width the peak current is
		+
		+	\frac{1.7 \times 10^{-11} Could}{100 \times 10^{-9} sec} = 0.017 Amps
		+
		+	I believe we need to run at 0.01 Amps to keep the ion pumps working.

	==FC -vs- 90A beam stop correlation==		==FC -vs- 90A beam stop correlation==

@@ Line 94: / Line 94: @@
 |   6521   ||   min  s ( pulses) ||  same as last run except: dipoles set to electron mode
 |}
 ==FC -vs- 90A beam stop correlation==

@@ Line 91: / Line 91: @@
 |-
 |   6520   ||   min  s ( pulses) ||  same as last run except: sweep Magnet is In electron bending mode
 |}

@@ Line 68: / Line 68: @@
 ===Shielded Cell direct beam with magnet===
-reconfigure with magnet in shielded cell to deflect charged particles towards NaI detector #3,
+reconfigure with sweep magnet in shielded cell to deflect charged particles towards NaI detector #3,
 {| border="1"  |cellpadding="20" cellspacing="0
@@ Line 86: / Line 86: @@
 |   6517   || 2  min 18 s ( pulses) ||  same as last run except: Magnet is out
 |-
-|   6518   ||  7 min  10s ( pulses) ||  same as last run except: positron dipoles set to 8 MeV, Magnet is out
+|   6518   ||  7 min  10s ( pulses) ||  same as last run except: positron dipoles set to 8 MeV, sweep Magnet is out
 |-
-|   6519   ||   min  s ( pulses) ||  same as last run except: Magnet is In positron bending mode
+|   6519   ||   min  s ( pulses) ||  same as last run except: sweep Magnet is In positron bending mode
 |}