Light Source Serial Numbers and Histories

Introduction

A location to archive the serial numbers of the calibration sources used by KPF.

Octagon Positions

Hollow Cathode Lamps

Lamp Type	Octagon Position	Vendor	Part Number	Serial number	Notes
~~Th-Ne?~~	~~Th-Ar Daily~~	~~Photron~~		~~HJE0762~~	~~New lamp purchased by KPF?~~ (see notes below)
~~Th-Ar~~	~~Th-Ar Gold~~	~~Photron~~		~~HNC0486~~	~~Jerry’s older, now-sacred-to-KPF lamp~~ (see notes below)
U-Ne	U-Ne Daily	Photron		HRG0309	New lamp purchased by KPF
U-Ne	U-Ne Gold	Photron		HRG0308	New lamp purchased by KPF
					(add information about Th-Ne lamps)
Th-Ar	Th-Ar Daily	Green Scientific	G858A	L82979	New lamp purchased by KPF Installed, replaced within 3 days, broken.
Th-Ar	Th-Ar Daily	Green Scientific	G858A	L82890	New lamp purchased by KPF Notes on use history are not clear. Installed Dec 15, 2022 (daily or gold, not clear). Pulled from Gold on Feb 22, 2023 (Gold power supply not working), installed as Daily lamp. Verified working.
Th-Ar	Th-Ar Daily	Green Scientific	G858A	L82884	New lamp purchased by KPF Installed on Feb 15, 2023, no flux visible.

Broadband Lamps

Lamp Type	Vendor	Part Number	Serial number	Notes
Tungsten-Halogen	Thorlabs	SLS201L		No serial number is visible on enclosure exterior. Might be one on lamp itself, but I (SG) did not take the unit apart to look at lamp. Something to check if lamp burns out.
Tungsten-Halogen	Thorlabs	SLS201L

Super-Continuum

Lamp Type	Vendor	Serial number	Notes
			(add etalon’s super-K information)

History of installations and changes

NOTE: When a lamp is changed, please record the change in the table below, and also update the appropriate KTL keyword with the new serial number. The relevant keywords for the hollow cathode lamps are:

kpflamp.TH_DAILY_SN
kpflamp.TH_GOLD_SN
kpflamp.U_DAILY_SN
kpflamp.U_GOLD_SN

Date	Change
Aug 26, 2022	Installed HJE0762 as ThAr Daily
Aug 26, 2022	Installed HNC0486 as ThAr Gold
Aug 26, 2022	Installed HRG0309 as UNe Daily
Aug 26, 2022	Installed HRG0308 as UNe Gold
	(add Cal Unit broadband lamp information)
	(add Flat Field Fiber broadband lamp information)
	(add etalon’s super-K information)
Dec 12, 2022	Removed HNC0486 as ThAr Gold Moved HJE0762 from ThAr Daily to ThAr Gold (ThAr Daily supply does not work) Installed L82979 as ThAr Daily
Dec 15, 2022	Removed HJE0762 from ThAr Daily (broken) Installed L82890 as ThAr Daily
Feb 11, 2023	ThAr Daily (please verify serial number) reported as having substantially reduced flux, probably starting around Jan 26 2023.
Feb 15, 2023	Brett installed Green Scientific L82884 in Th-Ar Daily. No flux seen in cals during subsequent days.
Feb 21, 2023	Serial of lamp pulled from Th Daily (no serial on it, serial is on box) Serial of lamp in Th Gold is L82890 Moved L82890 to Daily as test 13 ma showing on on needle on power supply Keyword TH_DAILY_AMPS shows 223ma PDU shows 18W draw Can see light on summit from lamp (not fully inserted) Brett put GS lamp from Th_Daily (presumably L82884) in Th Gold Brett also wrote s/n on that lamp to help in future troubleshooting of that power supply (we’re presuming the notes from Feb 15 are correct) (Note: the `kpflamps.TH_DAILY_SN` and `kpflamps.TH_GOLD_SN` keywords were not updated)
April 10, 2023	Grant Hill made the change: L82890 came out (of Th_Daily) L82945 went in (Note: the `kpflamps.TH_DAILY_SN` keyword was not updated until May 9)
May 3, 2023	GS L82903 in to Th_GOLD (Note: the `kpflamps.TH_GOLD_SN` keyword was not updated until May 9)

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