Data library for Wire Cell Reconstruction

NOTE: this is not ready yet.

What is here

This package provides two things.

• a library providing objects geared toward holding representations of data related to wire-cell reconstruction
• a prototype example of a package others in the group may replicate

Build

See instructions at waf-tools at GitHub.

Test

There are two types of tests of this package:

• main C++ programs
• Python unit tests

The former are run as part of the build. The latter expects a properly setup PyROOT environment and to be exercised using nose (or equivalent). That can be installed easily like:

$ virtualenv --system-site-packages venv
$ source venv/bin/activate
$ pip install nose

See notes in the comments of ./tests/test_000.py for some details of how your PyROOT environment may be messed up.

Use

t.b.d.

Summary of parameters relevant to wire-cell

This section gives a summary of per-APA parameters relevant to the wire-cell approach for the different LAr detectors. The parameter values are given as triplets of numbers over the wire planes:

(collection, u-induction, v-induction)

Different detectors may label the collection plan differently, here ”Y” is used for all and designates the axis parallel to these wires.

The parameters collected (note: not all may be collected yet)

pitch

the separation between wires in a plane, in mm.

angle

the angles w.r.t the collection wires, in degrees.

number

the number of wires in the planes.

extent

shape and dimensions of the active area for each plane. Width is perpendicular to the Y direction, height is parallel.

what else

???

Also listed are links to references for these numbers.

MicroBooNE

Wires:

param	Y	U	V
pitch	3	3	3
angle	0	60	60
number	3456	2400	2400

Extent:

width (m)	10.3
height (m)	2.3

References:

• APS talk from Grosso

assign signs to angles

LBNE 35t

Wires:

param	Y	U	V
pitch(mm)	4.5	4.888	5.012
angle(deg)	0	45.707	44.275
number	224	144	144

Extent:

	Y	U	V
width (mm)	498.441	515.240	508.929
	tall	medium	short
height (mm)	1957.7	1120.0	840.7

Notes:

• U and V wires wrap around and are thus there are more exposed wire segments than there are wires.

References:

• LBNE DocDB 7750

assign signs to angles

LBNE 5kt

Wires:

param	Y	U	V
pitch	4.79	4.677	4.667
angle	0	35.710	35.710
number	960	800	800

Extent:

width (m)	2.29441
height (m)	5.9

References

• LBNE DocDB 3383

assign signs to angles

ICARUS

t.b.d.

CAPTAIN

t.b.d.